Bushing structure



@Fan [7, 1928. l

' M. SCHWARTZ BUSHING STRUCTURE Filed Nov. 27. 1925 2 Sheets-Shut 1 Jan. 17, 1928.

1,656,241 M. SCHWARTZ BUSHINGSTRUCTURE Filed Nov. 27, 1925 2 Sheets-Sheet 2 Patented Jan. 17, 1928.

UNITED STATES PATENT OFFICEI MORRIS SCHWARTZ, OF CHICAGO, ILLINOIS, A SSIGNOR T AMERICAN FLANGE & MAN- UFACTURING (30., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BUSHING STRUCTURE.

Application filed November 27, 1825. Serial No. 71,782.

My invention relates .to sheet metal members, such as the heads or other wall portions of metallic barrels or containers, though the invention is not to be thus limited, and which are provided with rims that enclose bushin s, these bushings in the case of barrels or 0t or containers being provided to receive bungs or stoppers and being usually interiorly threaded in order that the bungs may be screwed into the same.

My invention has for its object the provision of an improved construction of the rim portions of such sheet metal members and the bushings surrounded thereby, whereby these two elements may be so locked that the bushings may not be turned and thereby disturb the fluid-tight assembly of the bushings and rims.

In accordance with one characteristic of 2 the invention, the bushing is formed with a returned portion'upon the exterior of its body portion and has interlocking connection with the rim upon the exterior of which said returned body portion is disposed. In accordance with another characteristic of the invention, the sheet metal member has a dished part adjacent and surrounding the- The invention will be more fully explained "in connection with the accompanying drawings in which Fig. 1 is a plan view illustrating a construction of my invention, the bung or stopper being absent; Fig. 2 is a view-in elevation, on a smaller scale, of the structure shown in- Fig. 1, the bung being assembled with the bushing; Fig. 3 is a see tional view on line 33 of Fig. 1, on a larger scale with the bung present; Fig. 4 is a view, irom beneath, of the structure as it appears in Fig. 3, portions being broken away; Fig.

5 1s a perspective view of the complete struc ture, from beneath, the bung being absent;

F1gl 6 is a perspective view, from beneath,

of the sheet metal member, the bushing and bung being absent; Fig. 7 is a perspective V ew of the bushing; and Fig. 8 is a sectional vlew of another form of the invention taken at right angles to the axis of the bushing and 110 surrounding rim of the sheet metalmem- The sheet metal member 1, illustrated, may form a part of a structure which is to .66 be supplied with a bushing, such as the end or other wall of ametallic barrel or container. This metal member is formed with a generally circular rim portion 2 which is angular to the body portion of the sheet metal member, this body portion being desirably inclusive of a dished portion 3 that surrounds the rim, there being an annular head 4 which margins the attached portion of the rim. .Said rim thus immediately surrounds a generally circular opening formed through the sheet metal member to permit of the passage of fluid or material through said member. The rim is outwardly bulged at 5 at one place as indicated in Fig. 8 and so at a number of places as clearly indicated in Figs. 2, 4 and 6, the bulging extending from the unattached edge of the rim toward its attached edge and preferably only to the rim portion or portions 6 which margin the attached edge of the rim, adjacent the bead 4.

The bushing has a body portion 7 which is preferably interiorly threaded as indicated at- 8, this body portion being surrounded by the rimand having as many returned portions 9 as there are bulges 5 in the rim, these returned portions being connected by inter vening inset portions 10 which, with the portions 9, surround the body portion 7. In the structure of Fig, 8 there is but one returned bulging portion 9 and one returned inset portion 10 as there is but one bulged portion 5 of the rim. Each bulging rim portion 5 is snugly received .in the recess 11 defined 10c 1a in the dished llcl as to engage not only the outer arcuate wall of the corresponding recess 11, but also the end walls 12 of this recess that are transverse to the bushing, these transverse walls of said recess and the engaged bulging rim ortion 5 cooperating to prevent the bush ng irom turning. All of .the returned bushing ortions 9 and 10 constitute a wall surrounding the rim, this wall being 'oined with the body portion of the bushing y a continuous annular web 12' having sealing engagement with the unattached edge of the rim.

The dished the sheet meta member 1 is itself outwardly bulged as indicated at 13, there being as many bulges 13 as there are bulges 9. In Fig. 8, there is but one bulging portion 13 in the dished part 3 of the sheet metal member, 1. In the structure shown in the remaining figures there are as many bulges part 3 as there are bulges '5 in the rim the contiguous bulges 5 and 13 being ra 'ally aligned. The bulges 9 upon the bushing, in addition to receiving the bulges 5 u on the rim, are received in the bulges 13 m the dished part 3 of the member 1. There is thus afforded a double locking structure guarding against the rotation of the bushing, the side wall-12 of the bulged bushing portions 9 engaging the radial sides of the recesses at 13. The engagement of the body portion 7 of the bush ing and the web 12 with-the rim is so intimate as to guard against leakage. 'Other engaging portions of the bushing and rim are in as intimate contact as possible for the same purpose. The rim ortion 2, where unbulged, is formed to 0 er no material resistence to the turning movement of the bushing.

The bun or stopper 14 is received in the bore of t e bushin If the bushing is interiorly threaded, t e bung is correspondingly threaded and has a polygonal forma-- tion 15, whereby a wrench maybe applied thereto to screw it tightly intoplace. sealing fiasket'lti may be inte sedbe tween a ange 17 on the bung an the head 4 and also to overlie the flange 18 formed at the end of the bushing opposite the end from which the returned rtions 9 and10 spring. The flange 18 desirably overlies the unattached ends of the returned portions 10 of the b the circular portion 19 of til? slleet nae nimbe'r 1 lfiein desira y osey grip tween .t e ange 18 and thereturned bushing portions 10 to efiect a further fluid-tight connection begreen the bushing and the sheet metal memr I t w Changes may be made without departing from the invention. J

lilavmg thus described my invention, I aim:-

A movement of the bushin member inclusive of a bod portion and a circular rim portion angu ar to the body portion and immediately surrounding a circular opening formed through said member, said rim being outwardly bulged; of a bushing having a body portion surrounded by said rim and a returned exterior ot its body ortion and dis osed upon the exterior of t e rim, the rim ing received between said returned bushing portion and the body portion of the bushing and having its bulging portion in holding part 3 of the body portion of engagement with said returned portion, the body portion of .the sheet metal member also havin a dished part adjacent and-surrounding tie rim, this dished art being outwardly bulged, the returned portion of the bushing havin a portion received in the recess defined by the bulging-of the dished part of the sheet metal member, the rim por-' tion of said sheet metal member being formed, where unbulged, to offer no material resistence to the turning movement of the bushing but the recessed and bulging portions of the sheet metal member and bushing being in interlocking engagement and provided with square shoulders to prevent relative turning movement.

2. The combination with a sheet metal member inclusive of a bod portion and a circular rim portion an ar to the body portion and immediately surrounding a circular opening formed throu h said member, said rim being outwardly blfiged; of a bushing having a body portion surrounded by said run and an outwardly bulged returned portion upon the exterior of its body member being formed, where unbulged, to

offer no material'rcsistence to the turn' but the recesse the sheet metal and bulging rtions 0 portion upon the P "v tion and dis osed upon the exterior of the member and ushing being in interlocking engzfement and provided with square sho tders to prevent relative turning movemen 3. The combination witha sheet metal member inclusive of a body portion and a circular portion angular to the a 0m portion and immediately surroun cular open ng formed thro h sai bar, and run he" utw abushing l a'f Tiod by said rim an memyf bulged; of

y portion surrounded an outwardly: bulged re-.

portion upon the exterior of its body a portion and disposed upon the exterior of the rim, the rim received between sa1d retumed buzflnng portion and the body portion of bushing and whose bulging lap portion is received by said bulged bushing, portion, the body portion of the sheet metal member also having a dished art adjacent and surrounding the rim, t s dished part being outwardly bulged, the returned bulged portion of the bushing being received in the recess defined by the bulging of the dished part ofthe sheet metal member, the rim ortion of said sheet metal member being ormed, whereunbulged, to offer no ma.-

and-provided with square shoulders to pre- 15 vent relative turning movement. g a In witness whereof, I hereunto subscribe my name.

' MORRIS SCHWARTZ 

